ошибка, связанная с рубин 1.9.3 и MongoDB драйвер

Question

я установил после tutorial

$gem install mongo 
Successfully installed mongo-1.8.6 
1 gem installed 
Installing ri documentation for mongo-1.8.6... 
Installing RDoc documentation for mongo-1.8.6... 

и

gem install bson_ext 
Building native extensions. This could take a while... 
Successfully installed bson_ext-1.8.6 
1 gem installed 
Installing ri documentation for bson_ext-1.8.6... 
Installing RDoc documentation for bson_ext-1.8.6... 

Мой mongo.rb

#!/usr/bin/ruby -w 

require 'mongo' 
include Mongo 

mongo_client = MongoClient.new("localhost", 27017) 
db = mongo_client.db("somedb") 
coll = db.collection("somecoll") 

Когда я побежал Монго. rb, я получил ошибку:

/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/bson_ext-1.8.6/ext/bson_ext/bson_ext/cbson.so: warning: method redefined; discarding old legal? 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/bson-1.8.6/lib/bson/types/object_id.rb:39: warning: previous definition of legal? was here 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/bson_ext-1.8.6/ext/bson_ext/bson_ext/cbson.so: warning: method redefined; discarding old from_string 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/bson-1.8.6/lib/bson/types/object_id.rb:107: warning: previous definition of from_string was here 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/bson_ext-1.8.6/ext/bson_ext/bson_ext/cbson.so: warning: method redefined; discarding old to_s 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/bson-1.8.6/lib/bson/types/object_id.rb:119: warning: previous definition of to_s was here 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/util/pool_manager.rb:267: warning: mismatched indentations at 'end' with 'def' at 259 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/db.rb:339: warning: assigned but unused variable - e 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/gridfs/grid.rb:24: warning: assigned but unused variable - connection 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/gridfs/grid_file_system.rb:25: warning: assigned but unused variable - connection 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/util/write_concern.rb:32: warning: instance variable @legacy_write_concern not initialized 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/util/write_concern.rb:32: warning: instance variable @legacy_write_concern not initialized 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/util/write_concern.rb:32: warning: instance variable @legacy_write_concern not initialized 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/util/logging.rb:41: warning: instance variable @instrumenter not initialized 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/mongo_client.rb:523: warning: instance variable @max_message_size not initialized 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/mongo_client.rb:519: warning: instance variable @max_bson_size not initialized 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/mongo_client.rb:519: warning: instance variable @max_bson_size not initialized 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/util/write_concern.rb:32: warning: instance variable @legacy_write_concern not initialized 
/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/mongo-1.8.6/lib/mongo/util/write_concern.rb:32: warning: instance variable @legacy_write_concern not initialized 

Но, в IRB, кажется, нормально:

$irb 
1.9.3-p429 :001 > require 'mongo' 
=> true 
1.9.3-p429 :002 > include Mongo 
=> Object 
1.9.3-p429 :003 > mongo_client = MongoClient.new("localhost", 27017) 
=> #<Mongo::MongoClient:0x00000001b5d618 @host="localhost", @port=27017, @id_lock=#<Mutex:0x00000001b5d550>, @primary=["localhost", 27017], @primary_pool=#<Mongo::Pool:0xdb22d4 @host=localhost @port=27017 @ping_time= 0/1 sockets available up=true>, @mongos=false, @tag_sets=[], @acceptable_latency=15, @slave_ok=nil, @ssl=nil, @unix=false, @socket_class=Mongo::TCPSocket, @auths=[], @pool_size=1, @pool_timeout=5.0, @op_timeout=nil, @connect_timeout=30, @logger=nil, @read=:primary, @write_concern={:w=>1, :j=>false, :fsync=>false, :wtimeout=>nil}, @read_primary=true, @max_bson_size=16777216, @max_message_size=48000000> 
1.9.3-p429 :004 > db = mongo_client.db("somedb") 
=> #<Mongo::DB:0x00000001b66e48 @name="somedb", @connection=#<Mongo::MongoClient:0x00000001b5d618 @host="localhost", @port=27017, @id_lock=#<Mutex:0x00000001b5d550>, @primary=["localhost", 27017], @primary_pool=#<Mongo::Pool:0xdb22d4 @host=localhost @port=27017 @ping_time= 0/1 sockets available up=true>, @mongos=false, @tag_sets=[], @acceptable_latency=15, @slave_ok=nil, @ssl=nil, @unix=false, @socket_class=Mongo::TCPSocket, @auths=[], @pool_size=1, @pool_timeout=5.0, @op_timeout=nil, @connect_timeout=30, @logger=nil, @read=:primary, @write_concern={:w=>1, :j=>false, :fsync=>false, :wtimeout=>nil}, @read_primary=true, @max_bson_size=16777216, @max_message_size=48000000>, @strict=nil, @pk_factory=nil, @write_concern={:w=>1, :j=>false, :fsync=>false, :wtimeout=>nil}, @read=:primary, @tag_sets=[], @acceptable_latency=15, @cache_time=300> 
1.9.3-p429 :005 > coll = db.collection("somecoll") 
=> #<Mongo::Collection:0x00000001ba9518 @name="somecoll", @db=#<Mongo::DB:0x00000001b66e48 @name="somedb", @connection=#<Mongo::MongoClient:0x00000001b5d618 @host="localhost", @port=27017, @id_lock=#<Mutex:0x00000001b5d550>, @primary=["localhost", 27017], @primary_pool=#<Mongo::Pool:0xdb22d4 @host=localhost @port=27017 @ping_time= 0/1 sockets available up=true>, @mongos=false, @tag_sets=[], @acceptable_latency=15, @slave_ok=nil, @ssl=nil, @unix=false, @socket_class=Mongo::TCPSocket, @auths=[], @pool_size=1, @pool_timeout=5.0, @op_timeout=nil, @connect_timeout=30, @logger=nil, @read=:primary, @write_concern={:w=>1, :j=>false, :fsync=>false, :wtimeout=>nil}, @read_primary=true, @max_bson_size=16777216, @max_message_size=48000000>, @strict=nil, @pk_factory=nil, @write_concern={:w=>1, :j=>false, :fsync=>false, :wtimeout=>nil}, @read=:primary, @tag_sets=[], @acceptable_latency=15, @cache_time=300>, @connection=#<Mongo::MongoClient:0x00000001b5d618 @host="localhost", @port=27017, @id_lock=#<Mutex:0x00000001b5d550>, @primary=["localhost", 27017], @primary_pool=#<Mongo::Pool:0xdb22d4 @host=localhost @port=27017 @ping_time= 0/1 sockets available up=true>, @mongos=false, @tag_sets=[], @acceptable_latency=15, @slave_ok=nil, @ssl=nil, @unix=false, @socket_class=Mongo::TCPSocket, @auths=[], @pool_size=1, @pool_timeout=5.0, @op_timeout=nil, @connect_timeout=30, @logger=nil, @read=:primary, @write_concern={:w=>1, :j=>false, :fsync=>false, :wtimeout=>nil}, @read_primary=true, @max_bson_size=16777216, @max_message_size=48000000>, @logger=nil, @cache_time=300, @cache={}, @write_concern={:w=>1, :j=>false, :fsync=>false, :wtimeout=>nil}, @read=:primary, @capped=nil, @tag_sets=[], @acceptable_latency=15, @pk_factory=BSON::ObjectId, @hint=nil> 
1.9.3-p429 :006 > 

На самом деле, когда я бегу mongo.rb он не должен ничего показывать, потому что я просто указав, что БД и коллекция для использования.

Версия MongoDB - 2.4.3.

К сожалению, этот вопрос не является конкретным.

Answer 1

Те не ошибки, они предупреждения:

/home/askar/.rvm/gems/ruby-1.9.3-p429/gems/bson_ext-1.8.6/ext/bson_ext/bson_ext/cbson.so: warning: method redefined; discarding old legal?

Они не мешают вам от выполнения программы, они просто информируют вас о потенциальных проблемах в коде: неинициализированный переменный экземпляр, переопределены методах и т.п. ,

Они появляются, потому что вы звоните ruby с опцией -w. Вы можете использовать эти же параметры с irb:

$ irb -w 
irb> require 'mongodb' 
/home/toro2k/.gem/ruby/1.9.1/gems/bson_ext-1.8.6/ext/bson_ext/bson_ext/cbson.so: warning: method redefined; discarding old legal? 
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